Installing & setting up LAMP stack on CentOS7 Linux Server, Here I'll be showing how to setup Apache, MySql and PHP in CentOS7 Linux Server.

You can install PHPMyAdmin in CenOS7. By using PHPMyAdmin, you can manage databases easily.

Follow these steps

1. Install Apache Web Server on CentOS7

To Install and Setup Apache Web Server in CentOS7, execute these commands in SSH terminal.​

​​yum install httpd

​After executing above command, it will asks for confirmation about total download size and installed size, also about dependent packages.

Here the download size is 3MB, Installed size is 10MB and 4 dependent packages. To continue installing type y and hit Enter button.

​After the Completion of Apache Web Server installation in CentOS7 Linux Server, you will see a message like this below.

​After Installing Apache web server, start the apache server by using below command

systemctl start httpd​

​To start apache web server on server restart, execute this command once.

systemctl enable httpd

After completing above setp, type your server ip address in browser. You should see output like this below.

If you see the output, apache web server is installed in centos7 and ready to use.​

2. ​Install MySQL (MariaDB) in CentOS7

MariaDB is a drop in replacement for MySQL. It is a robust, scalable and reliable SQL server that comes rich set of enhancements.

Follow these commands to install MySQL database in CentOS7.​

​yum install mariadb-server mariadb​

Few seconds after executing above step, you will see information about download size and installed size, dependent packages. To continue installation type y and hit Enter button.

After Completion of MySQL (MariaDB) Database installation, you will see message like this below.

After installation, you need to start the database for that use start command. You need to setup database to server to start immediately on server restart for that use enable command.

​systemctl start mariadb

​​systemctl enable mariadb

After that you need to secure the database configuration, for that we need to execute the below command.

​mysql_secure_installation​

After executing above command, you need to enter password. By default password is empty, just press enter.

You will asked to set root password, press y and hit Enter button. Enter the desired password. This is the password we will use in future to connect to database.

​Remove anonymous user, we don't need it.

Disallow root login, this is used to database on this server from different server. We are not going to use and it's not secure, disable it.

​We are not going to use test database, just remove it.

​Reload the database privileges to update the newly configured settings.

​Now you have configured you database to secure settings.

3. Install PHP​​ in CentOS7 Server

To complete LAMP stack we need to install PHP & PHP-MySql modules. For installing those two modules follow the below commands.

yum install php php-mysql

​You will see the information about download size, installed size, dependent packages. Type y and press Enter button to continue installation.

​After Completion of installation, you will see a message like this below.

​After installation, to change to take effect in web server. Restart the apache web server. Follow below command.

​systemctl restart httpd

We need to check whether PHP & apache web server configured correctly or not. For that create a PHP file and add phpinfo function in that file. Follow these steps to create PHP file. 

nano /var/www/html/phpinfo.php​

​Put this below code in that file.

​<?php
phpinfo();
?>​

​Open this file in browser, http://your-ip-address/phpinfo.php

You should see output like this below.​

4. Install PHPMyAdmin in CentOS7 Server

This is optional step to install PHPMyAdmin, PHPMyAdmin is used to manage databases in MySQL database. To install and setup PHPMyAdmin in CentOS7 Server, use these below commands.

yum install phpmyadmin​

​To continue installation type y and press Enter button.

​After completion of installation, you should see a message like this.

Next edit phpMyAdmin.conf file to access PHPMyAdmin from other computers using browser. By default it is set to access only from the same machine.

/etc/httpd/conf.d/phpMyAdmin.conf​

​Comment the lines indicated below, and also add few extra lines to access it.

​## Comment the following Section ##
#<Directory /usr/share/phpMyAdmin/>
# <IfModule mod_authz_core.c>
# # Apache 2.4
# <RequireAny>
# Require ip 127.0.0.1
# Require ip ::1
# </RequireAny>
# </IfModule>
# <IfModule !mod_authz_core.c>
# # Apache 2.2
# Order Deny,Allow
# Deny from All
# Allow from 127.0.0.1
# Allow from ::1
# </IfModule>
#</Directory>

## Add the following lines:

<Directory /usr/share/phpMyAdmin/>
Options none
AllowOverride Limit
Require all granted
</Directory>

​Edit config.inc.php file and set the auth_type to http instead of cookie.

​nano /etc/phpMyAdmin/config.inc.php

​/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'http'; 
// Authentication method (config, http or cookie based)?

​Restart the apache server for changes to take effect.

​systemctl restart httpd

Open http://your-server-ip-address/phpmyadmin, it will asks for username and password. These are MySQL database username and password, which you updated in step no-2 while installing database. After login, you can access PHPMyAdmin and start creating databases, database users. 

I hope you have successfully installed LAMP Stack on CentOS7, if you have any problem while installing LAMP stack. Let me know using comment form below.